E09
What code E09 means on a Bosch dishwashers, what causes it, and which part to check first.
● SEVERITY: HIGH
Bosch E09 means: Heating Element Failure. The documented cause is: Burned-out heating element (part 00480317 or 12008656) · Failed thermistor (temperature sensor) · Control board not sending power to the heater · Hard water scale buildup insulating the heating element
What E09 means
Heating Element Failure
The display shows E09 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by easybear-appliancerepair.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| Burned-out heating element (part 00480317 or 12008656) |
| Failed thermistor (temperature sensor) |
| Control board not sending power to the heater |
| Hard water scale buildup insulating the heating element |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. The heating element and the wash water can stay hot long after the cycle ends.
What to check, in order
From the quickest check to the one that needs a technician.
Find a specialist
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Frequently asked questions
What does E09 mean on a Bosch?
Heating Element Failure The documented cause is: Burned-out heating element (part 00480317 or 12008656) · Failed thermistor (temperature sensor) · Control board not sending power to the heater · Hard water scale buildup insulating the heating element
Can I fix E09 myself?
It depends on the part involved: Burned-out heating element (part 00480317 or 12008656) · Failed thermistor (temperature sensor) · Control board not sending power to the heater · Hard water scale buildup insulating the heating element Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Bosch use other codes on this appliance?
Yes: we document 16 other codes for Bosch on this dishwashers. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.